JPS55154886A - Picture communication system - Google Patents

Picture communication system

Info

Publication number
JPS55154886A
JPS55154886A JP6268179A JP6268179A JPS55154886A JP S55154886 A JPS55154886 A JP S55154886A JP 6268179 A JP6268179 A JP 6268179A JP 6268179 A JP6268179 A JP 6268179A JP S55154886 A JPS55154886 A JP S55154886A
Authority
JP
Japan
Prior art keywords
small hole
screen
unit
attendant
picture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6268179A
Other languages
Japanese (ja)
Inventor
Yoshibumi Sakasai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6268179A priority Critical patent/JPS55154886A/en
Publication of JPS55154886A publication Critical patent/JPS55154886A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/002Special television systems not provided for by H04N7/007 - H04N7/18

Abstract

PURPOSE:To make it possible to remove the unnaturalness of an observer's gaze by taking a picture of the observer through the small hole of a display screen and by projecting no light upon the part of the small hole. CONSTITUTION:A video signal sent from a party conference room is supplied to projector 8 to remove a part equivalent to small hole 5 on screen 4 by a blanking pulse generated by a blanking pulse generator. Light projected by projector 8 forms a picture on screen 4, but the part of small hole 5 becomes dark so that no light strikes pickup unit 1. Attendant 10 at a conference takes a look at the image of a party attendant on screen 4 and, at this time, sees hole 5, i.e., the lens part of unit 1, so that attendant 10 faces unit 1 in a picture taken by unit 1.
JP6268179A 1979-05-23 1979-05-23 Picture communication system Pending JPS55154886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6268179A JPS55154886A (en) 1979-05-23 1979-05-23 Picture communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6268179A JPS55154886A (en) 1979-05-23 1979-05-23 Picture communication system

Publications (1)

Publication Number Publication Date
JPS55154886A true JPS55154886A (en) 1980-12-02

Family

ID=13207265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6268179A Pending JPS55154886A (en) 1979-05-23 1979-05-23 Picture communication system

Country Status (1)

Country Link
JP (1) JPS55154886A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5761389A (en) * 1980-09-30 1982-04-13 Nippon Telegr & Teleph Corp <Ntt> Video communication system
JPS58188699A (en) * 1982-04-28 1983-11-04 武藤工業株式会社 Controller for note of automatic drawing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5761389A (en) * 1980-09-30 1982-04-13 Nippon Telegr & Teleph Corp <Ntt> Video communication system
JPS58188699A (en) * 1982-04-28 1983-11-04 武藤工業株式会社 Controller for note of automatic drawing machine
JPH0327396B2 (en) * 1982-04-28 1991-04-15 Mutoh Ind Ltd

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